Kasimir vog-eu of chelsea



K.f VOG-EL. SEWING MACHINE PoR BU'TToNHoLEs.

No. 80,520. Patented July 28, 1868.

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TH: Nonms PETERS Co. morau'mn.. wAsmNnroN. n c.

-KASLMIR vo'enii VQF' CHELSEA, MASSACHUSETTS; ASSIGNOR ro n nEN 'wzLOTHRORoFSAM-E PLAGE.'

'-LnefsgPam-vm. 80,520, ma July 28,1868. t

lnlneiovs1st-ENT nl: SEWING-MACHINE ros BUTTON-"Horns To iiLL' WH'OMITJMAX QONGERIS chusetts, hai-'e in ve eilanetv landus'ei'ul Iniprovemeht in Serving-Machines and IV do hereby declare that thejfollowing is" a full yudeirac:V letters of referencemarked' 'e it VknownthatV I, KASIMIR l/'oGEL, o`V Chelse'aiin the county of Suolk,andCommomvealt-hof Massaeription thereof, reference being had.tot-iieaccompanying drawings, and to the i The nature of myinventioiconsistsin an improved mechanism design-odio be attached to'and 'operated in connection with common pinin sew'ngmaehin'cs, and bymeansl of such a'ttnchmentsaidmachines-may be used for stitchingbutton-holesand other over-edgework andembroidery, as hereinafterdescribed. l

.FigLu-elV c f the accompanyinfg` drawings is a top view o f, saidu1echanism,l with allg'i'ts parts' represented;

a represents a gear Vonthe verticalshiift o f a 'Si nger;familysewing-machine, which operates said attachment, when it is secured' tothe table of said machine and inconnection with such gearglbyimpartin'giuotion to the'gear b, upon which is'a earn, d, which'xvorksagainst a. projection, ff, indicated dotted- Iinesffnthe slottedVennnecting-arin c, (more fully shown in iig. which' arm, @being moved'by 'said cam.`d',f`ro`cks thelievenc on i its sind, 5, and -thus alateral vibrating motion is imparted to the clamp@ n, which holds andvguides the materia-lz" to be stitched, Around said stud 5 iS a`coiled-'Wire spring, e, which gives a return movement to y'the *parte*operated by the cam d. 'On the 4under side ofvsaid. gear b is anothercam, ai, indicated'lby dotted lines, which' .works against a trundle onthe end 'of the'arrnv `f, 'which arm'swngson the, stud 11i-'under theratciietf and 'pinion g, 'as indicated by'lthe dotted lines. i On this'arm z' is a'pawl, c?, operated by--said arm gains't the ia t'chet,

f, thus'giving motion to said ratchet, and tothe pinion fixed on thesame. shaft therewith. v"Said paivlferis held.Y

'against said ratchet f by theV spring Pfand Asaid ratchet is prevented.from turning backward by the catch-j.

All theselast-named partsare more fully shoiin in iig. 2.

- E represents an irregnlarftooth'edcam enferme-@which is attached to anundergear, h', and revolves there.-

lwith around the stud y. Inthe und-er side ofv said gear i is c ut agroove in the formindicated .by the dotted lines gn-x, 'in whichgroove-the-trundlc w, on the lever t, which 'reeksen the stud ii, works,and, as Vsaid .gearfh 'revolvcs,iilm.parts an'intermittent `forn'ardandbackwardmove'ment tothe opposite eu'd ofsail lover-#fand through said'lever totheplate p, whichcnrries with it or feeds along the clamp -n n,which 'holdsthcmatei'ial to be stitched. Said leveiftlhas aslgttdf-fend,2, through which the pin 3,' which ivfwks between the bars 4 'on theplate p,lp'asses, and forms 'the connection between the'isaiilplate andlever t. VOrixsitid' pin 3 are'two washers, one'aboveand'one beloufthelever t, and the pin-is secured in any desired'position in the theslotof the lever by 'turning thethnmb-nutv, andthe extent ot` themovement of the `plate p forwardn'nd backward according t'o thediierentlengths of' buttonholes to be stitched,l V is regulated bymoving the pinr 3 to different positions in'the`slot2 in said levert..L, i Figure 4 represents a sectional side-view of the clamp, which holdsand gndcsthe material to be stitched. s.; is the sere-w, ivhieh, workingin the habre?, depresses and'raies the jawsof the clampf-r, betweenivhich and meten n n ftheclamp the' materiau to be stitched is hem.

' In fig.l Legein, Arcpresents a, stitched button-hole in its properposition inthe clamp(` `inthe process of stitchingv thebutton-hole'Atheneedle of the Stitching-machinedecends (when the buttonhole 'is cutbefore stitching) alternately 'through the hole out andthe edge of thecloth around the hole, by reason of the lateral vibrations of the clampholding the cloth produced inthe manner described. 'lhus the plainsewing'stitch, whatever itfxnay be, of any machine to which thisattachment is applied, isfconverted into an 'over-edge orbutton-hole'sttch, and the extent of suchvibrationslimitsthe depth ofthe stitching ini-the cloth' around the edges of' the button-hole, andtho'oxtent ofsueh-vibrations or" length of the stitches laterally isVregulated and variadas desired, for button-hole or other stitching, bymeans of said irregulartoothedlcam or formerE. Y i "I v y l i Y Thelevr1c, upon which is the spring-catch l, vis rocked upon-"its hub, l'5,by'means of ,the Vcarnal and the spring z, coiled around said hub 5, as,before described, and the inward movement ont" said lever k isregulated, as dcsirethby the revolving of the cam E, -se that-thespring-cateh l on said l'ever k rests alternatelyon the ends `of thetecth of said cam, and in their intermediate spaces.

During the for-ward intermittent movement of said, clamp n n, to theextent ofthe length of the buttonl vvhole to be stitched, said cam Emoves around on its axis intermittently'nearly one-haii` a revolution,presenting,

during said movement, to said catch Z, alternately, the teeth andintermediate spaces on that portion of said cam, lwhich teeth are of` aunii'orm size and distance from the axis of said cain. Then, to stitchacross or bar the end of the button-hole', four longer teeth and spacesare in like manner presented tosaid catch, which increase the extent ofthevibrations of said lever and clamp laterally for afew stitches, andthus the stitching-of one side and end of thebutton-holc is completed.Then, as the motion of the clamp is reversed and moves backward thelength of the button-hole, the' saidcamE moves around, as before, nearlyanother halt` revolution, presenting, asbefore, tosaid catch l, teethand spaces, alternately, like those on its opposite side, but atagreater distance from thcaxis of the cam, which greater distancethrovvs ont of range of'the needlethe side alreadystitched, and whensaid cam has thus nearly completed this last half of its revolution, itagain presents to said 4catch four longer teeth andspnces, whichincrease the extent of4 the vibratidns, as before, and thus finish oi"the last end and complete the stitching of the button-hole. y

By varying the teeth around the circumference of said cam or former E,as has been shown, the lengthV of the stitches laterally is regulatedand varied according to the-Variations in the teeth and spaces, eachtoothand space representing the length of a 'stitch laterally, andibymaking thebircumi'erence of said camljnore irregular, the line ofstitching `may thereby be varied froma straight line, like .that of theedges ofa'bn'ttoull hole, to any irregular form, thus adapting it tostitching scallops, points, embroidery, and such other work as requiresto be stitched on irregular lines and with variable lateral stitches.

' It is obviousthat the same results may be attained Without deviatingfrom the principle or" my invention,

by using, instead of a revolving former like the cam E, an irregiflarcam or formerwith varying teeth censtructedl upon and embodyinglsubstantially the' same principle of invention as the cam E, vbutfor/med and vadapted tower-k with a rocking or reciprocating instead ofa rotary movement for like purposes and with theA same results.' i vlVhat I claim'asA my invention, and desire to secureA by Letters Patent,is-

1. The irregular-toothed cam' or former E, Whether having'anintermittent rotary, rocking, or reciprocating movement, substantiallyVas and for the purposes described.

2. The several parts of the described mechanism, when constructed,combined, and operating substantially in 'the manner and for thepurposes described.

` I KASIMIR VOGEL. Witnesses: V

' EUGENE, HUMPHRY,

A. C. HAsrmis.

